In my book 1/10 of an inch is not effective so those folks need to be slapped. My feeling is 0.25 or more per application and I like to see 0.4 to .05 applied via soak cycle on heavy clay.
The concern is over Joe home owner being told to water deeply and restricted to one or two days so he waters to the point of run off, and or well past the effective roots zone.
The other concern is if you do have to cut back frequency on Turf that is used to getting watered every day. Turf will become lazy and put energy into top growth instead of deeper roots if watered some every day. I say let the roots chase the deeper water.
I know that is a point of debate at TAMU, if you can influance root growth with watering frequency.